Flowcine T-nut
The Black T-nut is a clever M12x1.75 nut that you can tighten either by hand or with a 19mm wrench. Of course it fits our Black Single clamps, but can also be used in most places where you’d need a M12x1.75 nut.
The “wings” of the nuts are offset, so that they don’t collide if you need to mount them close to each other. See images above.
It ships in packs of 2 or 10 T-nuts.